muzakthings

9 ms·

31.
by muzakthings 10y ago
Oh very cool! It looks like this runs in realtime as well?
32.
by muzakthings 10y ago
Not really. It's not like a neural network which approximates a crazy function to the feature space leaving brittle points where you can exploit that to get false positives. You could, for instance, insert other tracks into the audio a
33.
by muzakthings 10y ago
Oh, totally interesting. Didn't know that. The American vernacular is you get "dejavu" whenever you have that "I've been here before..." feeling.
34.
by muzakthings 10y ago
Good question. The answer is that time is an invariant here. Dejavu uses a locally sensitive hash (LSH) just like any other approximate search hash might. The key to note is that we're binning both the frequency and time units of the
35.
by muzakthings 10y ago
Echoprint is wonderful for fingerprinting speed (C++), but the fingerprint size is actually smaller in Dejavu (binary(10) field in SQL for each fingerprint). The other interesting differences to note are that Echoprint doesn't use a co
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by muzakthings 10y ago
Thanks! Glad you liked it. It's always been a frustration of mine (even reading / writing academic papers) when the author obfuscates or makes something more complicated than it needs to be. You only truly understand something whe
37.
by muzakthings 10y ago
Hey! Creator here. That's so cool to see! I made Dejavu as a fun side project in grad school, and it's super fun to see all the cool stuff people make with it. I get a couple emails a week about it, but probably the weirdest/
38.
by muzakthings 10y ago
This is somewhat of a misnomer. For those of you who came here expecting acoustic fingerprinting, realize this is a different class of algorithms related to locality sensitive hashing (LSH), ala Shazam, etc. If you look at the page [here]
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by muzakthings 10y ago
Gosh how reckless of them to want to pay back their VCs (streaming enough music to satisfy millions of people costs $$) and also become a profitable business!
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by muzakthings 11y ago
Honest question, why does anyone care about spelling errors? They aren't even grammatical errors; we know what they intended. I'd rather they make spelling errors than factual ones, and I'd rather we focus on teaching kids pr
41.
by muzakthings 11y ago
There's nothing wrong with Chick-fil-A selling chicken with antibiotics, and there's nothing wrong with Mark Zuckerburg being clever about how he spends his money. If you don't like Chick-fil-A, don't eat there. If you d
42.
by muzakthings 11y ago
Pharmacies have zero to do with drug costs. Try pharmaceuticals, insurance companies, the FDA, and trade policies if you want to find the culprits or actual structure behind the prices of drugs.
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by muzakthings 11y ago
also curious how you found families willing to host!
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by muzakthings 12y ago
That's certainly useful, and what Echoprint and MusicBrainz have tried to do. Unfortunately, many fingerprinting use cases require hashing at different granularities (ie, FFT windows), or need different collision guarantees to trade of
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by muzakthings 12y ago
Not sure if you've seen this, but relevant: http://www.shotspotter.com/
46.
by muzakthings 12y ago
Glad to see it's working well for you! I'd be curious as well to see how the performance holds up getting into the terabytes as I haven't tested that. Remember too that there are a lot of parameters for the matching algorithm
47.
by muzakthings 12y ago
Nope! Dejavu is meant for recovery of perfectly maintained signals with additive noise. That is to say, detecting a signal or song played slightly slower than the original hashed version is completely outside what Dejavu can do. Detecting a
48.
by muzakthings 12y ago
Hey! Creator here. Awesome to see this get posted and people excited about the project. I made a cool writeup about it here: http://willdrevo.com/fingerprinting-and-audio-recognition-wi... It's a great little library f
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by muzakthings 12y ago
Why fingerprint audio with Shazam when you can do it yourself? I've made my own audio fingerprinting software in Python under the MIT license, check it out! https://github.com/worldveil/dejavu
50.
by muzakthings 12y ago
I've made my own audio fingerprinting software in Python under the MIT license, check it out! https://github.com/worldveil/dejavu
51.
by muzakthings 12y ago
Founder here. Yes of course - garbage in, garbage out. Still, we've constantly been surprised by how well we can learn on raw CSV dumps from SQL joins or just log data. Furthermore, small business owners or non technical folks can stil
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by muzakthings 12y ago
Haha, this is great. Thanks for the link.
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by muzakthings 12y ago
Making preprocessors for creating bag or words vectors from free text, a special IP address feature processor, etc - these are all the ways we're starting to make the automation smarter and more of a value add to experienced folks like
54.
by muzakthings 12y ago
Founder here. We also do deep learning, and we include hyperparameter optimization which is a very necessary component of training any good DBN. Feel free to contact me at will@datasight.io if you have questions.
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by muzakthings 12y ago
Hi there, founder here. Great point. We actually create a wrapper that allows you once finished to simply cut and paste a line from a CSV to get predictions - preprocessing, scaling, dummy encoding, PCA, etc all included. We'll also de
56.
Dejavu: Audio Recognition and Fingerprinting in Python(github.com)
4 points by muzakthings 13y ago|0 comments